I have light blue eyes and would not recommend these if you do as well. They are not yellow. They look very green. They are also very uncomfortable and cause blurry vision. I'm giving 2 stars though because they do glow in the dark with black light as described.

when i put them on for the first time, i had a very hard time keeping them in. they slide around on my eye and when that happens its very difficult to see through the yellow portion. they often feel rough because the water content in them is so little. also, under the UV light they look way more green than yellow in my opinion. but the fact that they glow is still really cool

The only reason why I gave this product 2 stars is because if I was just wearing it for no specifically intended purpose, I actually like how they look on me. But I did not buy it for that reason. I bought this specific color so my eyes would look yellow ESPECIALLY in black light so as to complete a costume I am planning to wear. But unfortunately, due to the fact that my natural eye color is a coffee brown, these contacts show up as GREEN (shades varying depending on light, but always some shade of GREEN) once I put them on my eyes.So be aware of the fact that if your natural eye color tends to be on the darker side, these contacts will NOT show up as yellow, but rather as GREEN!